Camera optical lens

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens includes, from an object side to an image side, a first lens with a positive refractive power; a second lens with a negative refractive power; a third lens with a negative refractive power; a fourth lens with a positive refractive power; and a fifth lens with a negative refractive power. The camera optical lens satisfies the following conditions: 0.40≤f1/f≤0.70; 2.00≤(R5+R6)/(R5−R6)≤20.00; 1.20≤d4/d5≤5.00 and −15.00≤R7/R8≤−1.50. The camera optical lens of the present disclosure has excellent optical performances, and meanwhile can meet design requirements of a large aperture, a long focal length and ultra-thin.

TECHNICAL FIELD

The present disclosure relates to an optical lens, particular, to acamera optical lens suitable for handheld devices, such as smart phonesand digital cameras, and imaging devices, such as monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, and as the progress ofthe semiconductor manufacturing technology makes the pixel size of thephotosensitive devices become smaller, plus the current developmenttrend of electronic products towards better functions and thinner andsmaller dimensions, miniature camera lens with good imaging qualitytherefore have become a mainstream in the market.

In order to obtain better imaging quality, the lens that istraditionally equipped in mobile phone cameras adopts a three-piece,four-piece, or five-piece lens structure. Also, with the development oftechnology and the increase of the diverse demands of users, and as thepixel area of photosensitive devices is becoming smaller and smaller andthe requirement of a system on the imaging quality is improvingconstantly, although the five-piece lens already has good opticalperformance, its focal power, lens spacing and lens shape are stillunreasonable, resulting in the lens structure still cannot meet thedesign requirements of a long focal length and ultra-thin while havinggood optical performance.

Therefore, it is necessary to provide a camera optical lens that hasbetter optical performance and also meets design requirements of a longfocal length and ultra-thin.

SUMMARY

The present disclosure provides a camera optical lens including, from anobject side to an image side: a first lens with a positive refractivepower, a second lens with a negative refractive power, a third lens witha negative refractive power, a fourth lens with a positive refractivepower, and a fifth lens with a negative refractive power. The cameraoptical lens satisfies the conditions of 0.40≤f1/f≤0.70,2.00≤(R5+R6)/(R5−R6)≤20.00, 1.20≤d4/d5≤5.00, and −15.00≤R7/R8≤−1.50.Herein f denotes a focal length of the camera optical lens, f1 denotes afocal length of the first lens, R5 denotes a curvature radius of anobject-side surface of the third lens, R6 denotes a curvature radius ofan image-side surface of the third lens, R7 denotes a curvature radiusof an object-side surface of the fourth lens, R8 denotes a curvatureradius of an image-side surface of the fourth lens, d4 denotes anon-axis distance from an image-side surface of the second lens to theobject-side surface of the third lens, and d5 denotes an on-axisthickness of the third lens.

The camera optical lens further satisfies a condition of−3.50≤f5/f≤−1.20. Herein f5 denotes a focal length of the fifth lens.

Further, an object-side surface of the first lens is convex in aparaxial region, and an image-side surface of the first lens is convexin the paraxial region. The camera optical lens further satisfies theconditions of −1.67≤(R1+R2)/(R1−R2)≤−0.16 and 0.14≤d1/TTL≤0.46. HereinR1 denotes a curvature radius of the object-side surface of the firstlens, R2 denotes a curvature radius of the image-side surface of thefirst lens, d1 denotes an on-axis thickness of the first lens, and TTLdenotes a total optical length from the object-side surface of the firstlens to an image surface of the camera optical lens along an opticalaxis.

The camera optical lens further satisfies the conditions of−1.04≤(R1+R2)/(R1−R2)≤−0.19 and 0.23≤d1/TTL≤0.37.

Further, the image-side surface of the second lens is concave in aparaxial region. The camera optical lens further satisfies theconditions of −2.67≤f2/f≤−0.48, 0.23≤(R3+R4)/(R3−R4)≤2.79, and0.02≤d3/TTL≤0.13. Herein f2 denotes a focal length of the second lens,R3 denotes a curvature radius of an object-side surface of the secondlens, R4 denotes a curvature radius of the image-side surface of thesecond lens, d3 denotes an on-axis thickness of the second lens, and TTLdenotes a total optical length from an object-side surface of the firstlens to an image surface of the camera optical lens along an opticalaxis.

The camera optical lens further satisfies the conditions of−1.67≤f2/f≤−0.59, 0.37 ≤(R3+R4)/(R3−R4)≤2.23, and 0.04≤d3/TTL≤0.10.

Further, the object-side surface of the third lens is convex in aparaxial region, and the image-side surface of the third lens is concavein the paraxial region. The camera optical lens further satisfies theconditions of −21.34≤f3/f≤0.50 and 0.02≤d5/TTL≤0.05. Herein, f3 denotesa focal length of the third lens, d5 denotes an on-axis thickness of thethird lens, and TTL denotes a total optical length from an object-sidesurface of the first lens to an image surface of the camera optical lensalong an optical axis.

The camera optical lens further satisfies the conditions of−13.34≤f3/f≤−0.62 and 0.03≤d5/TTL≤0.04.

Further, the object-side surface of the fourth lens is convex in aparaxial region, and the image-side surface of the fourth lens is convexin the paraxial region. The camera optical lens further satisfies theconditions of 0.79≤f4/f≤2.83 and 0.03≤d7/TTL≤0.12. Herein, f4 denotes afocal length of the fourth lens, d7 denotes an on-axis thickness of thefourth lens, and TTL denotes a total optical length from an object-sidesurface of the first lens to an image surface of the camera optical lensalong an optical axis.

The camera optical lens further satisfies the conditions of1.27≤f4/f≤2.26 and 0.05≤d7/TTL≤0.10.

Further, an object-side surface of the fifth lens is concave in aparaxial region. Herein the camera optical lens further satisfies theconditions of −16.51≤(R9+R10)/(R9−R10)≤−0.39 and 0.02≤d9/TTL≤0.08.Herein R9 denotes a curvature radius of the object-side surface of thefifth lens, R10 denotes a curvature radius of an image-side surface ofthe fifth lens, d9 denotes an on-axis thickness of the fifth lens, andTTL denotes a total optical length from an object-side surface of thefirst lens to an image surface of the camera optical lens along anoptical axis.

The camera optical lens further satisfies the conditions of−10.32≤(R9+R10)/(R9−R10)≤−0.49 and 0.03≤d9/TTL≤0.07.

The camera optical lens further satisfies a condition of0.31≤f12/f≤1.53. Herein f12 denotes a combined focal length of the firstlens and the second lens.

Further, an aperture F number of the camera optical lens is less than orequal to 1.71.

The camera optical lens further satisfies a condition of f/IH≥3.20.Herein, IH denotes an image height of the camera optical lens.

The camera optical lens further satisfies a condition of TTL/IH≥3.70.Herein, IH denotes an image height of the camera optical lens and TTLdenotes a total optical length from an object-side surface of the firstlens to an image surface of the camera optical lens along an opticalaxis.

Advantageous effects of the present disclosure are that, the cameraoptical lens has excellent optical performances, and also has a longfocal length and is ultra-thin. The camera optical lens is especiallysuitable for mobile camera lens components and WEB camera lens composedof high pixel CCD, CMOS.

BRIEF DESCRIPTION OF DRAWINGS

In order to more clearly illustrate the technical solutions in theembodiments of the present disclosure, the following will brieflydescribe the accompanying drawings used in the description of theembodiments. Obviously, the accompanying drawings in the followingdescription are only some embodiments of the present disclosure. For aperson of ordinary skill in the art, other drawings may be obtained fromthese drawings without creative work.

FIG. 1 is a schematic diagram of a structure of a camera optical lensaccording to Embodiment 1 of the present disclosure.

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1.

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1.

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1.

FIG. 5 is a schematic diagram of a structure of a camera optical lensaccording to Embodiment 2 of the present disclosure.

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5.

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5.

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5.

FIG. 9 is a schematic diagram of a structure of a camera optical lensaccording to Embodiment 3 of the present disclosure.

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9.

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9.

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF EMBODIMENTS

To make the objectives, technical solutions, and advantages of thepresent disclosure clearer, embodiments of the present disclosure aredescribed in detail with reference to accompanying drawings in thefollowing. A person of ordinary skill in the art should understand that,in the embodiments of the present disclosure, many technical details areprovided to make readers better understand the present disclosure.However, even without these technical details and any changes andmodifications based on the following embodiments, technical solutionsrequired to be protected by the present disclosure may be implemented.

Embodiment 1

Referring to the accompanying drawings, the present disclosure providesa camera optical lens 10. FIG. 1 is a schematic diagram of a structureof the camera optical lens 10 of Embodiment 1 of the present disclosure.The camera optical lens 10 includes five lenses. Specifically, thecamera optical lens 10 includes, from an object side to an image side:an aperture S1, a first lens L1, a second lens L2, a third lens L3, afourth lens L4 and a fifth lens L5. An optical element such as anoptical filter (GF) may be arranged between the fifth lens L5 and animage surface Si.

In the embodiment, the first lens L1, the second lens L2, the third lensL3, the fourth lens L4 and the fifth lens L5 are all made of plasticmaterial. Optionally, in another embodiment, each lens may also be madeof another material.

In the embodiment, a focal length of the camera optical lens 10 isdefined as f, a focal length of the first lens L1 is defined as f1, andthe camera optical lens 10 satisfies a condition of 0.40≤f1/f≤0.70,which specifies a ratio of the focal length f1 of the first lens L1 tothe focal length f of the camera optical lens 10. Within this range, aspherical aberration and a field curvature of the camera optical lens 10can be effectively balanced.

A curvature radius of an object-side surface of the third lens L3 isdefined as R5, a curvature radius of an image-side surface of the thirdlens L3 is defined as R6, and the camera optical lens 10 furthersatisfies a condition of 2.00≤(R5+R6)/(R5−R6)≤20.00, which specifies ashape of the third lens L3. Within this range, a degree of deflection oflight passing through the lens can be alleviated, and aberrations can bereduced effectively.

An on-axis distance from an image-side surface of the second lens L2 tothe object-side surface of the third lens L3 is defined as d4, anon-axis thickness of the third lens L3 is defined as d5, and the cameraoptical lens 10 further satisfies a condition of 1.20≤d4/d5≤5.00, whichspecifies a ratio of the on-axis distance d4 from the image-side surfaceof the second lens L2 to the object-side surface of the third lens L3 tothe on-axis thickness d5 of the third lens L3. Within this range, it isbeneficial to reduce a total optical length and thereby realizing anultra-thin effect.

An curvature radius of an object-side surface of the fourth lens L4 isdefined as R7, a curvature radius of an image-side surface of the fourthlens L4 is defined as R8, and the camera optical lens 10 furthersatisfies a condition of −15.00≤R7/R8≤1.50, which specifies a shape ofthe fourth lens L4. Within this range, it can facilitate correction ofan on-axis aberration.

A focal length of the fifth lens L5 is defined as f5, and the cameraoptical lens 10 further satisfies a condition of −3.50≤f5/f≤1.20, whichspecifies a ratio of the focal length of the fifth lens L5 to the focallength of the camera optical lens 10, by an appropriate distribution ofa refractive power, it leads to a better imaging quality and a lowersensitivity.

In the embodiment, the first lens L1 has a positive refractive power, anobject-side surface of the first lens L1 is convex in the paraxialregion, and an image-side surface of the first lens L1 is convex in theparaxial region. In other embodiments, the object-side surface and theimage-side surface of the first lens L1 may also be set to other concaveor convex distribution situations.

A curvature radius of the object-side surface of the first lens L1 isdefined as R1, a curvature radius of the image-side surface of the firstlens L1 is defined as R2, and the camera optical lens 10 furthersatisfies a condition of −1.67≤(R1+R2)/(R1−R2)≤−0.16. By reasonablycontrolling a shape of the first lens L1, so that the first lens L1 caneffectively correct a spherical aberration of the camera optical lens10. The camera optical lens 10 further satisfies a condition of−1.04≤(R1+R2)/(R1−R2)≤0.19.

An on-axis thickness of the first lens L1 is defined as d1, a totaloptical length from the object-side surface of the first lens L1 to animage surface of the camera optical lens 10 along an optical axis isdefined as TTL, and the camera optical lens 10 further satisfies acondition of 0.14≤d1/TTL≤0.46. Within this range, it is beneficial toachieve ultra-thin. The camera optical lens 10 further satisfies acondition of 0.23≤d1/TTL≤0.37.

In the embodiment, the second lens L2 has a negative refractive power,an object-side surface of the second lens L2 is convex in the paraxialregion, and the image-side surface of the second lens L2 is concave inthe paraxial region. In other embodiments, the object-side surface andthe image-side surface of the second lens L2 may also be set to otherconcave or convex distribution situations.

A focal length of the second lens L2 is defined as f2, and the cameraoptical lens 10 further satisfies a condition of −2.67≤f2/f≤−0.48. Bycontrolling the negative refractive power of the second lens L2 within areasonable range, it is beneficial to correct an aberration of thecamera optical lens 10. The camera optical lens 10 further satisfies acondition of −1.67≤f2/f≤0.59.

A curvature radius of the object-side surface of the second lens L2 isdefined as R3, a curvature radius of the image-side surface of thesecond lens L2 is defined as R4, and the camera optical lens 10 furthersatisfies a condition of 0.23≤(R3+R4)/(R3−R4)≤2.79, which specifies ashape of the second lens L2. Within this range, a development towardsultra-thin lenses would facilitate correcting a problem of an on-axisaberration. The camera optical lens 10 further satisfies a condition of0.37≤(R3+R4)/(R3−R4)≤2.23.

An on-axis thickness of the second lens L2 is defined as d3, and thecamera optical lens 10 further satisfies a condition of0.02≤d3/TTL≤0.13. Within this range, it is beneficial to achieveultra-thin. The camera optical lens 10 further satisfies a condition of0.04≤d3/TTL≤0.10.

In the embodiment, the third lens L3 has a negative refractive power,the object-side surface of the third lens L3 is convex in the paraxialregion, and the image-side surface of the third lens L3 is concave inthe paraxial region. In other embodiments, the object-side surface andthe image-side surface of the third lens L3 may also be set to otherconcave or convex distribution situations.

A focal length of the third lens L3 is defined as f3, and the cameraoptical lens 10 further satisfies a condition of −21.34≤f3/f≤−0.50,which specifies a ratio of the focal length f3 of the third lens L3 tothe focal length f of the camera optical lens 10. By appropriatedistribution of the refractive power, it leads to the better imagingquality and the lower sensitivity. The camera optical lens 10 furthersatisfies a condition of −13.34≤f3/f≤−0.62.

The camera optical lens 10 further satisfies a condition of0.02≤d5/TTL≤−0.05. Within this range, it is beneficial to achieveultra-thin. The camera optical lens 10 further satisfies a condition of0.03≤d5/TTL≤0.04.

In the embodiment, the fourth lens L4 has a positive refractive power,the object-side surface of the fourth lens L4 is convex in the paraxialregion, and the image-side surface of the fourth lens L4 is convex inthe paraxial region. In other embodiments, the object-side surface andthe image-side surface of the fourth lens L4 may also be set to otherconcave or convex distribution situations.

A focal length of the fourth lens L4 is defined as f4, and the cameraoptical lens 10 further satisfies a condition of 0.79≤f4/f≤2.83, whichspecifies a ratio of the focal length f4 of the fourth lens L4 to thefocal length f of the camera optical lens 10. By appropriatedistribution of the refractive power, it leads to the better imagingquality and the lower sensitivity. The camera optical lens 10 furthersatisfies a condition of 1.27≤f4/f≤2.26.

An on-axis thickness of the fourth lens L4 is defined as d7, and thecamera optical lens 10 further satisfies a condition of0.03≤d7/TTL≤0.12. Within this range, it is beneficial to achieveultra-thin. The camera optical lens 10 further satisfies a condition of0.05≤d7/TTL≤0.10.

In the embodiment, the fifth lens L5 has a negative refractive power, anobject-side surface of the fifth lens L5 is concave in the paraxialregion, and an image-side surface of the fifth lens L5 is convex in theparaxial region. In other embodiments, the object-side surface and theimage-side surface of the fifth lens L5 may also be set to other concaveor convex distribution situations.

A curvature radius of the object-side surface of the fifth lens L5 isdefined as R9, a curvature radius of the image-side surface of the fifthlens L5 is defined as R10, and the camera optical lens 10 furthersatisfies a condition of −16.51≤(R9+R10)/(R9−R10)≤−0.39, which specifiesa shape of the fifth lens L5. Within this range, a development towardsultra-thin lenses would facilitate correcting a problem of an off-axisaberration. The camera optical lens 10 further satisfies a condition of−10.32≤(R9+R10)/(R9−R10)≤−0.49.

An on-axis thickness of the fifth lens L5 is defined as d9, and thecamera optical lens 10 further satisfies a condition of0.02≤d9/TTL≤0.08. Within this range, it is beneficial to achieveultra-thin. The camera optical lens 10 further satisfies a condition of0.03≤d9/TTL≤0.07.

A combined focal length of the first lens L1 and the second lens L2 isdefined as f12, and the camera optical lens 10 further satisfies acondition of 0.31≤f12/f≤1.53. Within this range, an aberration and adistortion of the camera optical lens 10 can be eliminated, and a backfocal length of the camera optical lens 10 can be suppressed to maintaina miniaturization of an imaging lens system group. The camera opticallens 10 further satisfies a condition of 0.50≤f12/f≤1.22.

In the embodiment, an F number of the camera optical lens 10 is definedas FNO, and the camera optical lens 10 further satisfies a condition ofFNO≤01.71. When the condition is satisfied, the camera optical lens 10could have a large aperture. The camera optical lens 10 furthersatisfies a condition of FNO≤1.67.

In the embodiment, an image height of the camera optical lens 10 isdefined as IH, and the camera optical lens 10 further satisfies acondition of f/IH≥3.20. When the condition is satisfied, the cameraoptical lens 10 could have a long focal length.

The camera optical lens 10 further satisfies a condition of TTL/IH≤3.70,which is beneficial to achieve ultra-thin. The camera optical lens 10further satisfies a condition of TTL/IH≤3.53.

When satisfying above conditions, the camera optical lens 10 hasexcellent optical performances, and meanwhile can meet designrequirements of a long focal length and ultra-thin. According thecharacteristics of the camera optical lens 10, it is particularlysuitable for a mobile camera lens component and a WEB camera lenscomposed of high pixel CCD, CMOS.

In the following, embodiments will be used to describe the cameraoptical lens 10 of the present disclosure. The symbols recorded in eachembodiment will be described as follows. The focal length, on-axisdistance, curvature radius, on-axis thickness, inflexion point position,and arrest point position are all in units of mm.

TTL: Optical length (the total optical length from the object-sidesurface of the first lens L1 to the image surface Si of the cameraoptical lens along the optical axis) in mm.

The F number (FNO) means a ratio of an effective focal length of thecamera optical lens to an entrance pupil diameter (ENPD).

In addition, inflexion points and/or arrest points can be arranged onthe object-side surface and the image-side surface of the lens, so as tosatisfy the demand for high quality imaging. The description below canbe referred for specific implementations.

Table 1 and Table 2 show design data of the camera optical lens 10 shownin FIG. 1.

TABLE 1 R d nd ν d S1 ∞ d0= −1.000 R1 2.440 d1= 2.033 nd1 1.5444 ν 155.82 R2 −7.738 d2= 0.130 R3 37.893 d3= 0.350 nd2 1.6701 ν 2 19.39 R43.333 d4= 1.133 R5 1.957 d5= 0.250 nd3 1.5444 ν 3 55.82 R6 1.394 d6=1.084 R7 22.014 d7= 0.577 nd4 1.6701 ν 4 19.39 R8 −12.462 d8= 0.095 R9−3.492 d9= 0.308 nd5 1.5444 ν 5 55.82 R10 −6.776 d10= 0.276 R11 ∞ d11=0.210 ndg 1.5168 ν g 64.17 R12 ∞ d12= 0.735

Herein, meanings of various symbols will be described as follows.

S1: aperture.

R: curvature radius of an optical surface.

R1: curvature radius of the object-side surface of the first lens L1.

R2: curvature radius of the image-side surface of the first lens L1.

R3: curvature radius of the object-side surface of the second lens L2.

R4: curvature radius of the image-side surface of the second lens L2.

R5: curvature radius of the object-side surface of the third lens L3.

R6: curvature radius of the image-side surface of the third lens L3.

R7: curvature radius of the object-side surface of the fourth lens L4.

R8: curvature radius of the image-side surface of the fourth lens L4.

R9: curvature radius of the object-side surface of the fifth lens L5.

R10: curvature radius of the image-side surface of the fifth lens L5.

R11: curvature radius of an object-side surface of the optical filter(GF).

R12: curvature radius of an image-side surface of the optical filter(GF).

d: on-axis thickness of a lens and an on-axis distance between lens.

d0: on-axis distance from the aperture S1 to the object-side surface ofthe first lens L1.

d1: on-axis thickness of the first lens L1.

d2: on-axis distance from the image-side surface of the first lens L1 tothe object-side surface of the second lens L2.

d3: on-axis thickness of the second lens L2.

d4: on-axis distance from the image-side surface of the second lens L2to the object-side surface of the third lens L3.

d5: on-axis thickness of the third lens L3.

d6: on-axis distance from the image-side surface of the third lens L3 tothe object-side surface of the fourth lens L4.

d7: on-axis thickness of the fourth lens L4.

d8: on-axis distance from the image-side surface of the fourth lens L4to the object-side surface of the fifth lens L5.

d9: on-axis thickness of the fifth lens L5.

d10: on-axis distance from the image-side surface of the fifth lens L5to the object-side surface of the optical filter (GF).

d11: on-axis thickness of the optical filter (GF).

d12: on-axis distance from the image-side surface of the optical filter(GF) to the image surface Si.

nd: refractive index of a d line (when the d line is green light with awavelength of 550 nm).

nd1: refractive index of the d line of the first lens L1.

nd2: refractive index of the d line of the second lens L2.

nd3: refractive index of the d line of the third lens L3.

nd4: refractive index of the d line of the fourth lens L4.

nd5: refractive index of the d line of the fifth lens L5.

ndg: refractive index of the d line of the optical filter (GF).

vd: abbe number.

v1: abbe number of the first lens L1.

v2: abbe number of the second lens L2.

v3: abbe number of the third lens L3.

v4: abbe number of the fourth lens L4.

v5: abbe number of the fifth lens L5.

vg: abbe number of the optical filter (GF).

Table 2 shows aspherical surface data of each lens of the camera opticallens 10 in Embodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10A12 R1 −4.4124E−01  7.8712E−04 1.0659E−03 −1.7764E−03   1.5113E−03−8.0355E−04  R2  9.9895E+00 −4.7059E−03 5.4933E−03 1.9582E−03−4.0313E−03 2.3370E−03 R3  6.7961E+01 −2.8894E−02 7.1927E−03 1.9184E−02−2.2594E−02 1.3407E−02 R4  1.9002E+00 −2.3899E−02 4.6936E−04 2.2251E−02−2.5625E−02 2.0919E−02 R5 −1.0105E+01  1.1305E−01 −2.2750E−01 2.8414E−01 −3.6080E−01 3.7094E−01 R6 −7.2248E+00  2.6817E−01−4.6954E−01  6.8945E−01 −8.7633E−01 8.5559E−01 R7  3.4717E+01−2.3779E−02 −5.7521E−02  1.3190E−01 −2.7114E−01 3.2413E−01 R8 2.1003E+01 −6.7146E−02 1.8537E−02 −1.1793E−02  −5.1151E−03 1.5412E−02R9 −1.8264E+01 −1.7052E−01 2.0399E−01 −1.3194E−01   7.9266E−02−4.6645E−02  R10 −5.4393E+01 −9.8849E−02 8.5278E−02 −4.6551E−03 −4.2331E−02 3.7502E−02 Conic coefficient Aspheric surface coefficients kA14 A16 A18 A20 R1 −4.4124E−01  2.5787E−04 −4.9710E−05   5.1747E−06−2.2382E−07  R2  9.9895E+00 −7.4552E−04 1.4033E−04 −1.4638E−056.5627E−07 R3  6.7961E+01 −4.8218E−03 1.0734E−03 −1.3730E−04 7.8108E−06R4  1.9002E+00 −1.3728E−02 6.7943E−03 −2.0232E−03 2.6005E−04 R5−1.0105E+01 −2.6905E−01 1.2421E−01 −3.2058E−02 3.3678E−03 R6 −7.2248E+00−5.7856E−01 2.4925E−01 −6.0375E−02 6.0902E−03 R7  3.4717E+01 −2.3193E−019.7439E−02 −2.1783E−02 1.9825E−03 R8  2.1003E+01 −1.2517E−02 4.6689E−03−7.5009E−04 3.5791E−05 R9 −1.8264E+01  1.9717E−02 −4.9869E−03  6.7140E−04 −3.7256E−05  R10 −5.4393E+01 −1.6956E−02 4.3984E−03−6.1448E−04 3.5645E−05

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentdisclosure is not limited to the aspherical polynomials form shown inthe condition (1).

z=(cr ²)/{1+[1−(k+1)(c ² c ²)]^(1/2) }+A4r ⁴ +A6r⁶ +A8r ⁸ A10r ¹⁰ +A12r¹² +A14r ¹⁴ +A16r ¹⁶ A18r ¹⁸ +A20r ²⁰   (1)

Herein, k is a conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18and A20 are aspherical surface coefficients, c is a curvature of theoptical surface, r is a vertical distance between a point on anaspherical curve and the optic axis, and z is an aspherical depth (avertical distance between a point on an aspherical surface, having adistance of r from the optic axis, and a surface tangent to a vertex ofthe aspherical surface on the optic axis).

Table 3 and Table 4 show design data of inflexion points and arrestpoints of the camera optical lens 10 according to Embodiment 1 of thepresent disclosure. Herein P1R1 and P1R2 represent the object-sidesurface and the image-side surface of the first lens L1, P2R1 and P2R2represent the object-side surface and the image-side surface of thesecond lens L2, P3R1 and P3R2 represent the object-side surface and theimage-side surface of the third lens L3, P4R1 and P4R2 represent theobject-side surface and the image-side surface of the fourth lens L4,P5R1 and P5R2 represent the object-side surface and the image-sidesurface of the fifth lens L5. The data in the column named “inflexionpoint position” refer to vertical distances from inflexion pointsarranged on each lens surface to the optical axis of the camera opticallens 10. The data in the column named “arrest point position” refer tovertical distances from arrest points arranged on each lens surface tothe optical axis of the camera optical lens 10.

TABLE 3 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 1 1.895 / P1R2 0 / / P2R1 2 0.295 0.895 P2R20 / / P3R1 1 0.745 / P3R2 1 1.225 / P4R1 2 0.335 1.335 P4R2 1 1.525 /P5R1 2 0.875 1.625 P5R2 2 1.005 1.165

TABLE 4 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 0 / / P2R1 2 0.525 1.115 P2R2 0 / / P3R1 11.175 / P3R2 0 / / P4R1 1 0.545 / P4R2 0 / / P5R1 0 / / P5R2 0 / /

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 435nm after passing the camera optical lens 10 according to Embodiment 1,respectively. FIG. 4 illustrates a field curvature and a distortion witha wavelength of 555 nm after passing the camera optical lens 10according to Embodiment 1. A field curvature S in FIG. 4 is a fieldcurvature in a sagittal direction, and T is a field curvature in atangential direction.

Table 13 in the following shows various values of Embodiments 1, 2, and3, and also values corresponding to parameters which are specified inthe above conditions.

As shown in Table 13, Embodiment 1 satisfies the above conditions.

In the embodiment, the entrance pupil diameter (ENPD) of the cameraoptical lens 10 is 4.506mm, the image height IH of 1.0H is 2.040 mm, anFOV (field of view) in a diagonal direction is 30.14°. Thus, the cameraoptical lens 10 can meet the design requirements of the long focallength and ultra-thin, and its on-axis and off-axis chromaticaberrations are fully corrected, thereby achieving excellent opticalcharacteristics.

Embodiment 2

FIG. 5 is a schematic diagram of a structure of a camera optical lens 20according to Embodiment 2 of the present disclosure. Embodiment 2 isbasically the same as Embodiment 1 and involves symbols having the samemeanings as Embodiment 1, and only differences therebetween will bedescribed in the following.

In the embodiment, an image-side surface of a fifth lens L5 is concavein a paraxial region.

Table 5 and Table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd νd S1 ∞ d0= −0.715 R1 2.706 d1= 2.071 nd1 1.5444 ν1 55.82R2 −29.719 d2= 0.060 R3 13.606 d3= 0.599 nd2 1.6701 ν2 19.39 R4 4.093d4= 1.265 R5 1.463 d5= 0.253 nd3 1.5444 ν3 55.82 R6 1.323 d6= 0.961 R721.129 d7= 0.583 nd4 1.6701 ν4 19.39 R8 −14.039 d8= 0.245 R9 −5.552 d9=0.250 nd5 1.5444 ν5 55.82 R10 21.137 d10= 0.104 R11 ∞ d11= 0.210 ndg1.5168 νg 64.17 R12 ∞ d12= 0.579

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10A12 R1 −4.5623E−01  9.7315E−04 6.4675E−04 −1.7363E−03   1.5192E−03−8.0512E−04  R2  1.6006E+02 −2.6519E−02 7.0786E−03 2.4429E−03−4.0584E−03 2.3105E−03 R3  3.4423E+01 −3.1994E−02 2.9357E−03 1.8947E−02−2.2258E−02 1.3465E−02 R4  2.8998E+00 −1.1350E−02 −3.7068E−03 2.1670E−02 −2.6378E−02 2.1056E−02 R5 −5.1049E+00  1.6438E−01−2.1960E−01  2.8207E−01 −3.6096E−01 3.7119E−01 R6 −6.4083E+00 2.9707E−01 −4.7002E−01  6.8583E−01 −8.7516E−01 8.5549E−01 R7 1.2692E+02 −3.5798E−02 −5.6889E−02  1.3868E−01 −2.7161E−01 3.2255E−01R8 −2.2459E+01 −6.6025E−02 2.9490E−02 −1.5689E−02  −5.4985E−031.5700E−02 R9 −5.7166E+01 −1.7763E−01 2.0343E−01 −1.3237E−01  7.8997E−02 −4.6691E−02  R10  9.6413E+01 −1.0939E−01 8.1761E−02−4.4286E−03  −4.2095E−02 3.7532E−02 Conic coefficient Aspheric surfacecoefficients k A14 A16 A18 A20 R1 −4.5623E−01  2.5745E−04 −4.9629E−05  5.2250E−06 −2.2970E−07  R2  1.6006E+02 −7.4960E−04 1.4145E−04−1.3958E−05 5.1664E−07 R3  3.4423E+01 −4.8397E−03 1.0648E−03 −1.3723E−048.2476E−06 R4  2.8998E+00 −1.3450E−02 6.8065E−03 −2.1163E−03 2.7913E−04R5 −5.1049E+00 −2.6898E−01 1.2390E−01 −3.2328E−02 3.6283E−03 R6−6.4083E+00 −5.7955E−01 2.4881E−01 −6.0209E−02 6.2281E−03 R7  1.2692E+02−2.3234E−01 9.7689E−02 −2.1579E−02 1.8992E−03 R8 −2.2459E+01 −1.2443E−024.6476E−03 −7.6558E−04 3.9412E−05 R9 −5.7166E+01  1.9725E−02−4.9810E−03   6.7258E−04 −3.7367E−05  R10  9.6413E+01 −1.6968E−024.3921E−03 −6.1539E−04 3.6207E−05

Table 7 and table 8 show design data of inflexion points and arrestpoints of each lens of the camera optical lens 20 lens according toEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 1 1.885 / / P1R20 / / / P2R1 2 0.495 1.105 / P2R2 0 / / / P3R1 1 1.045 / / P3R2 1 1.135/ / P4R1 1 0.305 / / P4R2 2 1.545 1.645 / P5R1 3 0.925 1.155 1.715 P5R22 0.205 1.935 /

TABLE 8 Number of Arrest point arrest points position 1 P1R1 0 / P1R2 0/ P2R1 0 / P2R2 0 / P3R1 0 / P3R2 0 / P4R1 1 0.505 P4R2 0 / P5R1 0 /P5R2 1 0.355

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 435nm after passing the camera optical lens 20 according to Embodiment 2,respectively. FIG. 8 illustrates a field curvature and a distortion witha wavelength of 555 nm after passing the camera optical lens 20according to Embodiment 2. A field curvature S in FIG. 8 is a fieldcurvature in a sagittal direction, and T is a field curvature in atangential direction.

As shown in Table 13, Embodiment 2 satisfies the above conditions.

In the embodiment, an entrance pupil diameter (ENPD) of the cameraoptical lens 20 is 4.011 mm, an image height IH of 1.0H is 2.040 mm, anFOV (field of view) in a diagonal direction is 33.73°. Thus, the cameraoptical lens 20 can meet the design requirements of a large aperture, along focal length and ultra-thin, and its on-axis and off-axis chromaticaberrations are fully corrected, thereby achieving excellent opticalcharacteristics.

Embodiment 3

FIG. 9 is a schematic diagram of a structure of a camera optical lens 30according to Embodiment 3 of the present disclosure. Embodiment 3 isbasically the same as Embodiment 1 and involves symbols having the samemeanings as Embodiment 1, and only differences therebetween will bedescribed in the following.

In the embodiment, an object-side surface of a second lens L2 is concavein a paraxial region.

Table 9 and Table 10 show design data of the camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R d nd νd S1 ∞ d0= −1.236 R1 2.334 d1= 2.204 nd1 1.5444 ν1 55.82R2 −3.755 d2= 0.050 R3 −13.496 d3= 0.342 nd2 1.6701 ν2 19.39 R4 4.900d4= 0.288 R5 5.873 d5= 0.239 nd3 1.5444 ν3 55.82 R6 1.960 d6= 1.617 R7141.583 d7= 0.430 nd4 1.6701 ν4 19.39 R8 −9.440 d8= 0.276 R9 −2.423 d9=0.390 nd5 1.5444 ν5 55.82 R10 −3.091 d10= 0.337 R11 ∞ d11= 0.210 ndg1.5168 νg 64.17 R12 ∞ d12= 0.800

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical surface coefficients k A4 A6 A8A10 A12 R1 −3.7893E−01  1.0377E−03 1.4941E−03 −1.8254E−03   1.5251E−03−7.9736E−04  R2  1.5996E+00  3.2717E−02 8.5769E−04 1.7945E−03−3.9458E−03 2.3520E−03 R3 −8.3689E+00 −2.5012E−02 1.6657E−02 1.7814E−02−2.3114E−02 1.3435E−02 R4  5.0582E+00 −3.2833E−03 −2.4750E−02 4.2256E−02 −1.8405E−02 1.8152E−02 R5 −6.3544E+00  1.4833E−01−2.2353E−01  3.0001E−01 −3.5223E−01 3.7083E−01 R6 −1.4885E+01 3.4070E−01 −4.7835E−01  7.0245E−01 −8.6278E−01 8.5280E−01 R7−1.0000E+03 −5.8601E−02 −4.5630E−02  1.3107E−01 −2.7243E−01 3.2301E−01R8  2.0622E+01 −8.6679E−02 2.8216E−02 −1.2298E−02  −6.7508E−031.5063E−02 R9 −1.7383E+01 −1.9330E−01 2.0462E−01 −1.3165E−01  7.9023E−02 −4.6753E−02  R10 −2.6143E+01 −1.1534E−01 8.2569E−02−4.2463E−03  −4.2197E−02 3.7537E−02 Conic coefficient Aspherical surfacecoefficients k A14 A16 A18 A20 R1 −3.7893E−01  2.5821E−04 −4.9866E−05  5.1374E−06 −2.1858E−07  R2  1.5996E+00 −7.4552E−04 1.3979E−04−1.4743E−05 6.8107E−07 R3 −8.3689E+00 −4.7863E−03 1.0769E−03 −1.3931E−047.8189E−06 R4  5.0582E+00 −1.6126E−02 7.1858E−03 −9.4909E−04−4.1508E−05  R5 −6.3544E+00 −2.7079E−01 1.2366E−01 −3.1872E−023.4962E−03 R6 −1.4885E+01 −5.8390E−01 2.5043E−01 −5.6904E−02 4.1948E−03R7 −1.0000E+03 −2.3229E−01 9.7579E−02 −2.1637E−02 1.9569E−03 R8 2.0622E+01 −1.2426E−02 4.7316E−03 −7.4194E−04 3.3548E−05 R9 −1.7383E+01 1.9719E−02 −4.9704E−03   6.7623E−04 −3.8571E−05  R10 −2.6143E+01−1.6960E−02 4.3909E−03 −6.1688E−04 3.6728E−05

Table 11 and Table 12 show design data inflexion points and arrestpoints of the respective lenses in the camera optical lens 30 accordingto Embodiment 3 of the present disclosure.

TABLE 11 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 1 2.065 / P1R2 2 0.985 1.425 P2R1 1 0.815 /P2R2 0 / / P3R1 0 / / P3R2 0 / / P4R1 2 0.105 1.375 P4R2 1 1.485 / P5R11 1.525 / P5R2 1 1.815 /

TABLE 12 Number of Arrest point arrest points position 1 P1R1 0 / P1R2 0/ P2R1 1 1.195 P2R2 0 / P3R1 0 / P3R2 0 / P4R1 1 0.175 P4R2 0 / P5R1 0 /P5R2 0 /

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470nm and 435 nm after passing the camera optical lens 30 according toEmbodiment 3. FIG. 12 illustrates a field curvature and a distortion oflight with a wavelength of 555 nm after passing the camera optical lens30 according to Embodiment 3. A field curvature S in FIG. 12 is a fieldcurvature in a sagittal direction, and T is a field curvature in atangential direction.

Table 13 in the following shows various values of Embodiment 3, and alsovalues corresponding to parameters which are specified in the aboveconditions. Obviously, the camera optical lens 30 satisfies aboveconditions.

In the embodiment, an entrance pupil diameter (ENPD) of the cameraoptical lens 30 is 4.461 mm, an image height IH of 1.0H is 2.040 mm, anFOV (field of view) in a diagonal direction is 30.40°. The cameraoptical lens 30 can meet the design requirements of a long focal lengthand ultra-thin, and its on-axis and off-axis chromatic aberrations arefully corrected, thereby achieving excellent optical characteristics.

TABLE 13 Parameters and conditions Embodiment 1 Embodiment 2 Embodiment3 f1/f 0.49 0.70 0.41 (R5 + R6)/(R5 − R6) 5.95 19.90 2.00 d4/d5 4.535.00 1.21 R7/R8 −1.77 −1.51 −15.00 f   7.480 6.659 7.406 f1  3.655 4.6463.022 f2  −5.425 −8.881 −5.277 f3  −10.532 −71.046 −5.506 f4  11.84712.557 13.102 f5  −13.644 −8.024 −25.861 f12 6.185 6.791 4.606 FNO 1.661.66 1.66 TTL 7.181 7.180 7.183 IH 2.040 2.040 2.040 FOV 30.14° 33.73°30.40°

The above is only illustrates some embodiments of the presentdisclosure, in practice, one having ordinary skill in the art can makevarious modifications to these embodiments in forms and details withoutdeparting from the scope of the present disclosure.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side: a first lens with a positive refractive power; asecond lens with a negative refractive power; a third lens with anegative refractive power; a fourth lens with a positive refractivepower; and a fifth lens with a negative refractive power; wherein thecamera optical lens satisfies the following conditions: 0.40≤f1/f≤0.70;2.00≤(R5+R6)/(R5−6)≤20.00; 1.20≤d4/d≤5.00; and −15.00≤R7/R8≤−1.50. wheref denotes a focal length of the camera optical lens; f1 denotes a focallength of the first lens; R5 denotes a curvature radius of anobject-side surface of the third lens; R6 denotes a curvature radius ofan image-side surface of the third lens; R7 denotes a curvature radiusof an object-side surface of the fourth lens; R8 denotes a curvatureradius of an image-side surface of the fourth lens; d4 denotes anon-axis distance from an image-side surface of the second lens to theobject-side surface of the third lens; and d5 denotes an on-axisthickness of the third lens.
 2. The camera optical lens according toclaim 1 further satisfying the following condition: −3.50≤f5/f≤−1.20;where f5 denotes a focal length of the fifth lens.
 3. The camera opticallens according to claim 1, wherein, an object-side surface of the firstlens is convex in a paraxial region, and an image-side surface of thefirst lens is convex in the paraxial region, the camera optical lensfurther satisfies the following conditions: −1.67≤(R1+R2)/(R1−R2)≤−0.16;and 0.14d≤1/TTL≤0.46; where R1 denotes a curvature radius of theobject-side surface of the first lens; R2 denotes a curvature radius ofthe image-side surface of the first lens; d1 denotes an on-axisthickness of the first lens; and TTL denotes a total optical length fromthe object-side surface of the first lens to an image surface of thecamera optical lens along an optical axis.
 4. The camera optical lensaccording to claim 3 further satisfying the following conditions:−1.04≤(R1+R2)/(R1−R2)−≤0.19; and 0.23≤d1/TTL≤0.37.
 5. The camera opticallens according to claim 1, wherein, the image-side surface of the secondlens is concave in a paraxial region, the camera optical lens furthersatisfies the following conditions: −2.67≤f2/f ≤−0.48;0.23≤(R3+R4)/(R3−R4)≤2.79; and 0.02≤d3/TTL≤0.13; where f2 denotes afocal length of the second lens; R3 denotes a curvature radius of anobject-side surface of the second lens; R4 denotes a curvature radius ofthe image-side surface of the second lens; d3 denotes an on-axisthickness of the second lens; and TTL denotes a total optical lengthfrom an object-side surface of the first lens to an image surface of thecamera optical lens along an optical axis.
 6. The camera optical lensaccording to claim 5 further satisfying the following conditions:−1.67≤f2/f≤−0.59; 0.37≤(R3+R4)/(R3−R4)≤2.23; and 0.04≤d3/TTL≤0.10. 7.The camera optical lens according to claim 1, wherein, the object-sidesurface of the third lens is convex in a paraxial region, and theimage-side surface of the third lens is concave in the paraxial region,the camera optical lens further satisfies the following conditions:−21.34≤f3/f≤−0.50; and 0.02≤d5/TTL≤−0.05; where f3 denotes a focallength of the third lens; d5 denotes an on-axis thickness of the thirdlens; and TTL denotes a total optical length from an object-side surfaceof the first lens to an image surface of the camera optical lens alongan optical axis.
 8. The camera optical lens according to claim 7 furthersatisfying the following conditions: −13.34≤f3/f≤−0.62; and0.03≤d5/TTL≤0.04.
 9. The camera optical lens according to claim 1,wherein, the object-side surface of the fourth lens is convex in aparaxial region, and the image-side surface of the fourth lens is convexin the paraxial region, the camera optical lens further satisfies thefollowing conditions: 0.79≤f4/f≤2.83; and 0.03≤d7/TTL≤0.12; where f4denotes a focal length of the fourth lens; d7 denotes an on-axisthickness of the fourth lens; and TTL denotes a total optical lengthfrom an object-side surface of the first lens to an image surface of thecamera optical lens along an optical axis.
 10. The camera optical lensaccording to claim 9 further satisfying the following conditions:1.27≤f4/f≤2.26; and 0.05 ≤d7/TTL≤0.10.
 11. The camera optical lensaccording to claim 1, wherein, an object-side surface of the fifth lensis concave in a paraxial region, the camera optical lens furthersatisfies the following conditions: −16.51≤(R9+R10)/(R9−R10)≤−0.39; and0.02≤d9/TTL≤0.08; where R9 denotes a curvature radius of the object-sidesurface of the fifth lens; R10 denotes a curvature radius of animage-side surface of the fifth lens; d9 denotes an on-axis thickness ofthe fifth lens; and TTL denotes a total optical length from anobject-side surface of the first lens to an image surface of the cameraoptical lens along an optical axis.
 12. The camera optical lensaccording to claim 11 further satisfying the following conditions:−10.32≤(R9+R10)/(R9−R10)≤−0.49; and 0.03≤d9/TTL≤0.07.
 13. The cameraoptical lens according to claim 1 further satisfying the followingcondition: 0.31≤f12/f≤1.53; where f12 denotes a combined focal length ofthe first lens and the second lens.
 14. The camera optical lensaccording to claim 1, wherein an aperture F number of the camera opticallens is less than or equal to 1.71.
 15. The camera optical lensaccording to claim 1, wherein the camera optical lens further satisfiesthe following condition f/IH≤3.20; where IH denotes an image height ofthe camera optical lens.
 16. The camera optical lens according to claim1 further satisfying the following condition: TTL/IH≤3.70; where, IHdenotes an image height of the camera optical lens; and TTL denotes atotal optical length from an object-side surface of the first lens to animage surface of the camera optical lens along an optical axis.